Bio-Rad Shares Move Higher On Word That USDA Retests Suspected Mad Cow | GenomeWeb

When the US Department of Agriculture last week said that results of a screening test had raised the possibility that a second cow in the United States was infected with bovine spongiform encephalopathy, investors took notice.

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In Science this week: convergent evolution in bird hemoglobin, and more.

The Wall Street Journal speaks with patients affected by questionable test results from Theranos.

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Kuwait says it will alter its law requiring citizens and visitors to provide DNA samples, New Scientist reports.